Jump to content
SAU Community

Recommended Posts

hey guys just wondering on your opinions for the best thing to do bout my car, i have light mods so far and i reccently bought gtr injectors + resistor pack to suit my rb20 r32, i was thinkin of installin a pfc + retune but due to the overall cost of such an excersize, i was after your opinion on runnin just a fuel controller to run the injectors and manage the airflow, my question is, how good will it run? i realise its not gona be as good as a pfc but for the price/hp gain, would it make it better on fuel? more power etc etc. honest opinions please as im not very knowledgeable on such a subject.. thanks

Link to comment
https://www.sau.com.au/forums/topic/141279-safc-ii/
Share on other sites

here are your options

1) buy ap engineering PFC

$1400 + $400 tuned

- expensive ap engineering version

- option of power fc pro for same price

- can be tuned / fixed by anyone who supports PFC

2) buy rb25 or rb26 PFC

$950 + $400 tuned

- rb25 version should throw errors for VCT sensor/trigger

- rb26 version can support twin afms if u want later on

- will need rb26 injectors for rb26 version

- may not work correctly if done wrong

- can be tuned / fixed by anyone who supports PFC

3) buy a remap for stock ecu

$450 ish tuned

- cheapest first off

- will be $450 to have it fixed or "tuned" again if you change stuff later

- locked into only people who can remapping

4) safc II

$400 to buy it (ish)

$250 maybe to tune it?

- cheaper again

- has limited load points and tuning capability

- wont support bigger injectors

- will push the stock ecu too far in the end, the more u lean out or bend the afm signal, the more timing it throws in, so youll eventually be stuck, but it will be fine for stock turbo

- cool display screen

they all should make the same power and performance

the main quality will be how good the tune thats put on the stock remap or PFC. if the PFC tune isnt that good drive to another PFC tuner and get them to touch it up, or use the PFC FAQ and do some of it yourself. you also get a lot more visiblity with the PFC over the stock remap. you get knock sensor notification, afm support, injector support, airflow warning, injector warning, sensor display, 02 sensor feedback and hand controller (also option of pro version if ap engineering). if the remap tune sucks u have to goto the same person or only a few select remappers and they will just charge u the same price most likely to touch it up each time, as they just burn the chip again. PFC touchups should be much cheaper and quicker

www.nengun.com

4E14N07Z -=> AU $ 1,452.91 - Apexi PoweFC Pro - Nissan Skyline HCR32 RB20DET (H/C 415-N001 Included)

4E14N07Z -=> AU $ 1,373.63 - Apexi PowerFC - Nissan HCR32 RB20DET 89/5-93/8

414-AN012 -=> AU $ 908.71 - Apexi PowerFC - Nissan Skyline ECR33 RB25DET (For Version 1&2)

414-AN029 -=> AU $ 908.71 - Apexi PowerFC - To suit BNR32/BCNR33

those prices are delivered from japan but don't include customs, which it is meant to be exempt from

Link to comment
https://www.sau.com.au/forums/topic/141279-safc-ii/#findComment-2631454
Share on other sites

i would suggest powerfc as your best option (rb25det but do some research on what you have to do to get it to work).

unless you live somewhere where there is a good remap tuner (hard to find)

think of it as a long-term solution, do you ever think you'll buy an aftermarket turbo? how much power will you eventually be aiming for? if your answer is "yes" and "more than 160-170kw" then a proper tune is a must....

Link to comment
https://www.sau.com.au/forums/topic/141279-safc-ii/#findComment-2631803
Share on other sites

i guess it also comes down to who tunes it and how good they are

if its just some kid with an eprom burner who dumps a map on and off you go its not going to be as good as a well done PFC tune. by "good" or "well done" i mean the number of load points adjustmeted on the piggyback or remap or PFC tune. the more points adjusted the better the car will be to drive. a stock PFC on stock maps is good but an safc with all the load points tuned will be better. likewise with a PFC with say 30 to 40 points adjusted it will be ace to drive around and have much better response, and probably average power. likewise with the remap, if its got a big wad of ign and inj points adjusted it would be better

Link to comment
https://www.sau.com.au/forums/topic/141279-safc-ii/#findComment-2631973
Share on other sites

the number of load points adjusted isn't a very good indication of the quality of the tune.

the quality of the tune would be a function of...

1. the comprehensiveness of the tune (relates to number of map points adjusted, and also relates to the time spent tuning under different conditions)

2. the tuner's skill

3. the features of the ECU

i'm going to avoid talking about remaps v powerfc because it's been done to death and we won't reach a meaningful conclusion

but i will say this:

If tuner skill is equal, a fuel only computer will give you a much poorer tune than a fuel and timing computer (or remapping fuel and timing maps). Tuning a fuel only computer is very very easy, if you have the right tools, it's a simple logical process with little-no guesswork.

1 and 2 are the most important factors, and provided an aftermarket ecu gives you a reasonable level of adjustment they all have the potential to provide equally good tunes. Remaps and most of the aftermarket fuel and timing computers people are using all offer similar features and level's of adjustment.

Edited by MerlinTheHapyPig
Link to comment
https://www.sau.com.au/forums/topic/141279-safc-ii/#findComment-2634362
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
    • More so GReddy oil relocation kits, sandwich plates, etc. all use 10AN fittings. And same, I've only used 10AN and my car sees track work (circuit, doing laps, not 10 sec squirt business).
×
×
  • Create New...